Window.



C. F. REICHARDT.

WINDOW.

APPLICATION FILED Nov. I4, I9I3A Patented Mar. l7, 1916.

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'rl-IE CDLUMBIA PLANcGR/IPH COI. WASHINGTON. D. c.

C. F. REICHARDT.

WINDOW.

APPLlcAUoN FILED Nov. 14, 1913.

Patented Mar. 7,1916.

2 SHEETS-SHEET 2.

THE CQLUMBIA PLANDDRAPH .60., WASHINGTON, D. C.

CHARLES F. REICHARDT, OF WOOIDI-IAVEN, NEW YORK.

WINDOW.

Specification of Letters Patent.

Patented Mar. *7,- 1916.

Application filed November 14, 1913. Serial No. 800,918.

My invention relates to windows in gen- Y eral that are adapted to close automatically, but it relates particularly to windows which will close automatically in case of fire.

The object of my invention is to provide a self-closing window which will become effectively closed in case of fire and which is so constructed that the operating parts will not cause the window to bind in any way during the automatic closing and during the operation of the window after the automatic closing thereof. The last mentioned object of my invention is particularly important when it is desired to enter a building after the window has become closed automatically, inasmuch as at that time it becomes necessary frequently to raise or open the window in order to gain access to the building.

One object of. my invention relates particularly to providing a window of this character which may be readily opened after it has become automatically closed.

yA further object of my invention is to provide an improved form of fusible link in windowesupporting mechanisms, which link is so constructed that it will readily pass over the pulleys provided for window chains and which, while being exceedingly strong in construction will readily become disengaged under the infiuence of heat to cause the window to close automatically.

While my invention is capable of embodiment in many different forms, I have shown only one form thereof in the accompanying drawings, in which- Y Figure l is a front elevation of a window equipped with my own invention; Fig. 2 is a perspective view of the same, showing the window in open positiong'Fig. 8 is a similar view, showing the window in closed position after the window has been automatically closed, and Fig. 4 is a perspective view of a portion of the chain, showing one of the fusible links. Fig. 5 is a perspective view of a weight having a detachable bracket; Fig. 6 is a different perspective view of the same; and Fig. 7 is a perspective view of the complementary weight attached to the lower sash.

In the drawings I have shown a window frame 1, carrying a lower sash 2 'and an upper sash 3. The frame and sashes are preferably made of sheet metal. The lower sash 2 is supported at each side thereof by a pair ofl weights 4 and 5, the weights 5 having dove-tailed grooves 6 to receive dove-tailed extensions 7, carried by the weights 4. Each ofthe weights 4 is pro'- vided with a horizontally directed detachf able bracket 8, having an opening 9 to receive the chain which supports the weight attached to the upper sash 3. The weights 5 and if desired, the weights 4 may weigh only one-half as much as the weights 5. As shown in the drawings, each of the weights 5 isattached by means of a chain 10 of any usual construction to the top of the lower sash 2, said chain passing over a pulley 11. secured to the top of the window frame in the usual manner. The weights 4, on the other hand, yare connected to the lower sash 2 by means of a chainv 12, which i passes over pulleys lattached to the top of the window frame in the usual 'manner and downwardly through the frame of the lower sash 2 and beneath the same in such a mannerthat the chain 12 extends entirely around the three sides of the lower sash 2 with a portion of the chain extending across the end surface of the lower sash 2 in an exposed position. `The chain 12, above the top of the lower sash 2 and at Vthe bottom of said sash, is provided at intervals with fusible links 13a. These links are constructed from two eyelets 14, each of said eyelets having a pair'of leaves 15, which fit together telescopically and are secured together by means of solder or some other fusible composition which will cause `the twoparts of the fusible link to become separated under the influence of heat. These fusible links are, furthermore, .of such a` ported in the manner described, the Window ering of the *windenv sash 2 the Weights a,

and 5 will remain in engagement with each other and there vvill consequently not be any opportunity for these weights to become en.- tangled with each other nor, in fact, with the Weights 13, which support the other sash 3. Assuming that the Window is open, in case of fire one of the fusible links 13 in chain 12, either at the side of the ivindou7 frame above the top of the lower sash 2, or belou7 the bottom thereof, vvill be acted upon by the heat so as to cause the fusible composition holding the parts of the fusible link together to become melted, thereby disconnecting the parts of the fusible link and severing the chain 1Q in Which it is situated. W hen any one of the fusible links becomes disconnected in this manner, both of the Weights L1, to which the chain 12 is attached, Will immediately fall, thereby disengaging themselves from the Weights 5 and falling upon the tops of the Weights 16. he decrease of the size of the supporting Weights for the loiver sash 2 will immediately cause the loWer'sash to fall to the bottom of the Window frame, thereby closingl the same. Furthermore, the falling of the Weights l upon the Weights 16 Will so increase the Weights attached to the upper sash 3 as to Vcause the same to become immediately closed. vThis operation of closing the Windoiv is not only such as to cause the same to be closed when any one of the links 13a becomes disconnected in the manner indicated, either at one side of the VWindoivor at the bottom thereof, but the release of the Weights will be such as to cause the re-adj usted Weights attached to the two sashes 2 and 3 to exercise even pressures upon the two sides of the particular Winden7 sash. By this means any danger of the Window sashes becoming jammed or binding so as to prevent the proper operation of the same is entirely avoided. It is not only necessary to avoid the binding of the Window during the automatic vclosing of the sashes therein, but it is also necessary to avoid binding of the same When subsequently it is desired to open one of the sashes in order to enter the building through the Window, which frequently happens immediately following the discovery of a fire therein. Furthermore, the arrangement of the vWeights in such a manner that the majority of the supporting body of metal for the lower sash 2 is still attached to said sash, even after the automatic closing of the same enables the lower sash to be readily raised when it is desired to open the ivindoviT to enter the building after the discovery of a lire. This is a distinct advantage, inasmuch as it is very desirable to be able to raise the lower sash readily and quickly after a fire has been discovered and when it is desiredv to enter the building. Again, the use of detachable brackets 8 pen mits a bracket of the proper length for a particular Window to be readily applied.

While l have described my invention above in detail, it is to be understood that many changes may be made therein Without departing from the spirit of the invention.

I claim:

1. 1n combination a Window sash and means kfor supporting the same comprising a Weight and a chain connecting the Weight permanently to the sash, an auxiliary Weight attached to the sash and a chain connecting the auxiliary Weight to the sash and having fusible links said Weights being dovetailed together for relative longitudinal, but not lateral movement.

2. In combination a Windovv7 sash and means for supporting the same comprising a Weightand chain connecting the Weight permanently to the sash, an auxiliary Weight attached to the sash and having fusible links, said kweights having interlocking proj'ections and recesses interlocking the Weights together for relative longitudinal but not lateral movement.

In testimony thatI claim the foregoing 1 have hereunto set my hand.

CHARLES F. REICHARDT.

Vitnesses:

J. FRENDENVOLL, L. BRoDERroK.

Copies of this patent may be obtained for iv'e cents each, by addressing the Commissioner oi Eatenta Washington, 10.0. 

